Transcript
www.johansondielectrics.com
HIGH VOLTAGE POLYTERM® CERAMIC CAPACITORS Standard MLCCs are prone to cracking due to mishandling, depanelization, and board flexing. In response to customer requests for higher resistance to mechanical stress, and as a result of continuous efforts to improve our products, JDI has introduced PolyTerm® termination ceramic capacitors to meet those customer requirements for increased resistance to flexure cracking.
100% Sn External Termination
Ceramic Body
100% Sn External Termination
Ni Barrier
PolyTerm® is a conductive epoxy termination material loaded with silver, allowing it to absorb much more bending force than standard termination material. after termination PolyTerm®parts are nickel and tin plated using the same process as standard parts. There is no effect on solderability or capability to withstand the soldering process.
PolyTerm®
Pd/Ag Internal Electrodes
PolyTerm® capacitors are ideal for use in telecom, power supply, inverter, and modem applications.
Features • Lead Free terminations 100% sn, Final termination
• external termination Layer: 100% sn
• electrodes: Pd/ag
• NP0 and X7r temperature coefficient
• Core termination: Polyterm®
• Highly reliable performance
• Middle Barrier Layer: Ni
• Industry standard case sizes
HOW tO OrDer 302
r29
N
1r0
C
F
4
e
VOLtaGe 1st two digits are significant; third digit denotes number of zeros to follow
Case sIZe R15 = 0805 R18 = 1206 S41 = 1210 S43 = 1812 S47 = 2220 S48 = 2225 S49 = 1825
DIeLeCtrIC N = NP0 W = x7R
CaPaCItaNCe 1st two digits are significant; third digit denotes number of zeros to follow eg: 101 = 100 pF r denotes decimal eg: 1r0 = 1.0 pF
tOLeraNCe B = ± 0.1 pF C = ± 0.25 pF D = ± 0.5 pF J = ± 5% K = ± 10% M = ± 20%
terMINatION F = PolyTerm®
MarKING 4 = Unmarked
taPe CODe e = 7” Plastic t = Paper 7” reel
eg: 302 = 3000 VDCW
Safety Certified capacitor p/ns end with “-****-SC” and are rated at 250 Volts aC.
Example Part Number: 302R29N1R0CF4E
1 15191 Bledsoe Street, Sylmar, California 91342 • (818) 364-9800• Fax (818) 364-6100
www.johansondielectrics.com
HIGH VOLtaGe POLyterM® aVaILaBILIty - NP0 DIeLeCtrIC
Y2
5000V
4000V
2211 3000V
2000V
1000V
•
630V
X1Y2
•
500V
X2Y3
5000V
1812 4000V
3000V
2000V
1000V
630V
500V
3000V
•
1808 2000V
•
1000V
•
630V
•
500V
1000V
•
3000V
630V
•
1210 2000V
500V
1206 1000V
630V
0805 500V
Voltage
SIZE
1.0 pF 10 pF 12 pF 15 pF 18 pF 22 pF 27 pF 33 pF
•
•
39 pF 47 pF 56 pF 68 pF 82 pF 100 pF
•
•
120 pF 150 pF
•
180 pF 220 pF
•
270 pF 330 pF 390 pF 470 pF 560 pF 680 pF
•
•
•
820 pF 1.0 nF
•
1.2 nF 1.5 nF 1.8 nF 2.2 nF
•
•
•
2.7 nF 3.3 nF 3.9 nF 4.7 nF 5.6 nF 6.8 nF 8.2 nF 10 nF
Note: Part values marked with “•” have better availability and shorter lead times.
2 15191 Bledsoe Street, Sylmar, California 91342 • (818) 364-9800• Fax (818) 364-6100
www.johansondielectrics.com
HIGH VOLtaGe POLyterM® aVaILaBILIty - NP0 DIeLeCtrIC 5000V
4000V
3000V
2000V
630V
1000V
500V
5000V
4000V
2225 3000V
2000V
1000V
630V
500V
5000V
4000V
2220 3000V
2000V
630V
1000V
1825 500V
Voltage
SIZE
1.0 pF 10 pF 15 pF 18 pF 22 pF 27 pF 33 pF 47 pF 56 pF 68 pF 82 pF 100 pF 150 pF 180 pF 220 pF 270 pF 330 pF 470 pF 560 pF 680 pF 820 pF 1.0 nF 1.2 nF 1.5 nF 1.8 nF 2.2 nF 2.7 nF 3.3 nF 4.7 nF 5.6 nF 6.8 nF 8.2 nF 10 nF 12 nF 15 nF 18 nF 22 nF 27 nF 33 nF 39 nF 47 nF
Note: Part values marked with ‘•’ have better availability and shorter lead times.
3 15191 Bledsoe Street, Sylmar, California 91342 • (818) 364-9800• Fax (818) 364-6100
www.johansondielectrics.com
HIGH VOLtaGe POLyterM® aVaILaBILIty - X7r DIeLeCtrIC
Y2
X2Y3
5000V
3000V
•
2211 4000V
2000V
1000V
•
630V
•
500V
•
X1Y2
•
X2Y3
5000V
1812 4000V
3000V
2000V
1000V
630V
500V
3000V
1808 2000V
1000V
630V
500V
3000V
1210 2000V
1000V
630V
500V
1206 1000V
630V
0805 500V
Voltage
SIZE
100 pF 150 pF 180 pF 220 pF
•
•
•
•
270 pF 330 pF 470 pF 560 pF 680 pF
•
•
820 pF 1.0 nF
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
1.2 nF 1.5 nF 1.8 nF 2.2 nF 2.7 nF 3.3 nF 3.9 nF 4.7 nF 5.6 nF 6.8 nF 8.2 nF 10 nF 12 nF 15 nF 18 nF 22 nF 27 nF 33 nF 39 nF 47 nF 56 nF 68 nF 82 nF 100 nF 120 nF 150 nF 180 nF
Note: Part values marked with “•” have better availability and shorter lead times.
4 15191 Bledsoe Street, Sylmar, California 91342 • (818) 364-9800• Fax (818) 364-6100
www.johansondielectrics.com
HIGH VOLtaGe POLyterM® aVaILaBILIty - X7r DIeLeCtrIC
270 pF 330 pF 470 pF 560 pF 680 pF 820 pF 1.0 nF 1.2 nF 1.5 nF 1.8 nF 2.2 nF
•
2.7 nF 3.3 nF 3.9 nF 4.7 nF 5.6 nF 6.8 nF 8.2 nF 10 nF 12 nF 15 nF 18 nF 22 nF 27 nF 33 nF 39 nF 47 nF 56 nF 68 nF 82 nF 100 nF 120 nF 150 nF 180 nF 220 nF 270 nF 330 nF 390 nF 470 nF 560 nF 680 nF
Note: Part values marked with ‘•’ have better availability and shorter lead times.
5 15191 Bledsoe Street, Sylmar, California 91342 • (818) 364-9800• Fax (818) 364-6100
5000V
•
4000V
2000V
•
3000V
1000V
630V
500V
X1Y2
5000V
2225 4000V
3000V
2000V
1000V
630V
500V
5000V
4000V
2220 3000V
2000V
630V
1000V
1825 500V
Voltage
SIZE
www.johansondielectrics.com
BeND test DesCrIPtION The test board is designed so that the capacitance of the part can be measured while the part is being lexed (See igure 1). The capacitor is mounted at the center of the board. The testing equipment has a pressing block that is located so that it applies force at the center of the test board from below the part at a constant rate. Since the edges of the board are held in place by the support pins, this causes the board to lex. The amount of lex is measured in millimeters from the center of the board to the edge, please see “A” in Figure 2.
20
“A”
R340
+
Pressing Block
+
A R2.5
Probes Support Pins
Figure 1 40 45±2
45±2
Units: mm
Figure 2 As the test board is lexed, the capacitance is constantly being measured by a capacitance meter which is connected to the test boards through capacitance probes. The capacitance is irst measured at 0mm lex to establish the nominal value. The test board is then lexed to 1mm and held for at least on second, then the capacitance is measured, it is then lexed to 2mm, and so on up to 5mm. Any change in capacitance that exceeds 5% of the nominal value is considered a failure.
Bend Test Results 1808 size 100%
% of Parts that Fail
90% 80%
PolyTerm
70%
Standard Product
60% 50% 40% 30% 20% 10% 0%
3 mm
4 mm
5 mm
6 mm
8 mm
10 mm
Board Flex (mm)
6 15191 Bledsoe Street, Sylmar, California 91342 • (818) 364-9800• Fax (818) 364-6100
www.johansondielectrics.com
eXaMPLe OF CustOMer aPPLICatION Johanson Dielectrics receives a lot of requests from our customers to help them with cracking issues. One customer had cracking at a rate of 16% on 1206 size high voltage capacitors during their process. The top picture of Figure 3 shows a clear mechanical crack with a 45 degree angle at the termination solder pad interface. Repopulating the same board with PolyTerm® capacitors showed no cracking failures. The bottom picture of Figure 3 shows how PolyTerm® Capacitors solved these problems. No cracking was exhibited on any of the PolyTerm® capacitors during the customer assembly process.
Figure 3
7 15191 Bledsoe Street, Sylmar, California 91342 • (818) 364-9800• Fax (818) 364-6100
